Lawyers for victims of a cholera epidemic in Haiti said on Friday they have served United Nations Secretary-General Ban Ki-moon with a complaint in New York as part of a federal lawsuit seeking compensation for the outbreak, which they blame on U.N. peacekeepers.

Ban was entering an event at The Asia Society in Manhattan when he was handed the court papers by a process server, according to a statement by lawyers representing the plaintiffs.

A U.N. spokesman, however, said Ban was not served because his security did not allow him to accept the complaint.

“Ban Ki-moon was served personally. Not wishing to receive what he was given is not a defense, said Stanley Alpert, one of the attorneys for the plaintiffs. “He must now answer or move or be in default personally and for the U.N.,” he added.

Stephen Lewis, a former Canadian ambassador to the United Nations who has also served at the world agency in several other prominent postings, says the international organization must accept responsibility for the cholera epidemic that broke out in Haiti in October 2010. He says he supports the legal action against the UN that was formally launched in New York City on October 9 on behalf of the victims of the epidemic.

Lewis spelled out strongly-held views in a nine-minute interview on the national, Saturday morning newsmagazine of CBC Radio One, Day 6 on October 12.

The CBC host began the interview by asking Lewis whether he supports the action. He replied, “I do. I think it is unequivocal, the responsibility of the United Nations for the cholera outbreak.”

Lewis dismissed suggestions that definitive proof of the origin of Haiti’s cholera epidemic has not been established. The disease was not present in modern Haiti before October 2010. The epidemic, he said, “has been traced definitively to the Nepalese peacekeeping force” of the UN military mission in Haiti termed MINUSTAH.

Even the UN’s own study on the matter, he said, “came within a hair’s breath of saying ‘we were responsible’, and in fact, the independent investigations by scientists show there is no question of the origin of the cholera”.

UNITED NATIONS (AP) — Secretary-General Ban Ki-moon told members of the U.S. Congress Friday that the United Nations is committed to helping Haiti overcome a cholera epidemic even though it is refusing to pay compensation to victims who blame U.N. peacekeepers for starting the outbreak.

Health officials say more than 657,000 people have fallen ill and more than 8,000 people have died from cholera since it was likely introduced to Haiti by U.N. troops from Nepal in 2010. More than 30,000 people have fallen ill and 440 have died in the neighboring Dominican Republic.

Ban was responding to a May 30 letter from U.S. Rep. Maxine Waters, a California Democrat, and 18 other Congressional “friends of the people of Haiti” who expressed concern at the U.N.’s rejection of the claims by 5,000 cholera victims and their families.